2013年8月27日星期二

Mining loaders conditions of use and method of operation

First, the use
(1) roadway slope is not greater than 25 °;
(2) Roadway temperature -5 ℃ - +40 ℃, maximum relative humidity less than 90% (the temperature is 25 ℃);
(3) Voltage Tolerance is ± 5%, AC frequency limit deviation of +1%.
Second, the use of the preparatory work before the job loader
(A) suspension cables should be checked before starting the reliability of equipment when working sagging cables should Pallet conveyor always hold state, the cable shall withstand the

additional pressure.
(2) can be manually pull the cable, the method is to use a soft rope, a plunge in the cable jacket, the other end of the line to facilitate holding a wooden handle, pull the

cable when not rub on the floor in the roadway.
(3) Electric steering adjustment: move the Belt conveyor motor button, turn the fan motor and pump should be calibrated in the same direction, in the opposite direction should be immediately

shut down, change-order phase shift change.
(4) Check the hose connection is reliable, hoses skin and frame, picking bucket, picking arm, cylinders and other parts for extrusion and scratches on the device to protect the

cable, not bruised, not soaked in oil medium.
(5) Check the tension on both sides of the track, the track between the sprocket and the guide rollers amount of sag in the 10mm-20mm, check the tension of scraper chain,

scraper chain sprockets and idlers sagging volume of 10mm-20mm.
(6) Check the hose fittings, hydraulic components, sealing surface sealing, etc., check the connection part of the bolt preload each case, if loose, must promptly pretension.
(7) Fuel tank hydraulic oil level should be within the scope of standard instructions, working bodies of the hydraulic system pressure must be adjusted.
Third, mining loaders operating methods and precautions
(1) when the machine is strictly prohibited loader driver pulled Colorado-way valve control handle, non Tacai hydraulic tubing.
(2) loader driver operation, attention should be concentrated. Hold the left and right sides, respectively, with a joystick. On the floor in the soft job, every job Grilled

installed, the device's back distance should be sufficient (eg 1m), in order to fully clear the accumulation of crawler rock, to avoid clogging stuck.
(3) To operate continuously, should minimize the number of frequent start; operating handle shall not apply excessive force to avoid pressure shock; equipment start, stop, to do

slow, accurate and stable; Grilled blocked loading operations, should be promptly the operating handle complex to the neutral position, in order to avoid overflow system for a

long time

Fever.
(4) Explosion-proof enclosure shall not affect the surface explosion proof performance scratches, bumps, if any rust, should be clean and paint a thin layer of anti-rust oil

204-1, reliable components and intrinsically safe control circuit The elements must not change the component specifications, models and electrical parameters, in order to ensure

essential

The technical requirements for explosion-proof safety loop. When the motor is working, suddenly shut down, while working lights normal lighting, you should view the fault

phenomena, analyze the cause, troubleshooting before restarting pump motor.
(5) loader must not exist in the hydraulic system oil pipeline mode of operation, so as to avoid adverse consequences.

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